Part 12 Volume I provides for the certification of Aerodromes, issuance of Operational Permit as well as other Aerodrome Operational provisions. Part 12 Volume I is presented in four (4) subparts as follows: Subpart 1: General– contains provisions for Aerodrome Certification, Aerodrome Manual, Obligations of an Aerodrome Operator, Aerodrome Operational Permit and Joint Use Civil and Military Aerodromes. Subpart 2: Aerodrome Design and Operations Subpart 3: Aerodrome Work Safety, Accident/Incident Reporting and Investigation Procedures, Critical Data Related to Safety Occurrences and Aerodrome Safety Coordination Subpart 4: Aerodrome Development and Safeguarding This Regulation incorporates the Standards and Recommended Practices (SARPs) in Annex 14 Volume I, Ninth Edition, Amendment 17.